Greatest Common Factor of 642, 637, 921

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 642, 637, 921 by common division method
• Greatest Common Factor of 642, 637, 921 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Factors of 637

List of positive integer factors of 637 that divides 637 without a remainder.

1,7,13,49,91,637

Factors of 921

List of positive integer factors of 921 that divides 921 without a remainder.

1,3,307,921

Greatest Common Factor

We found the factors 642,637,921 . The biggest common factor number is the GCF number.
So the greatest common factor 642,637,921 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 420, 203, 353
• GCF of 791, 821, 478
• GCF of 906, 556, 684
• GCF of 913, 319, 649
• GCF of 229, 613, 960

1. What is the GCF of 642, 637, 921?

Answer: GCF of 642, 637, 921 is 1.

2. How to Find the GCF of 642, 637, 921

Answer: Greatest Common Factor(GCF) of 642, 637, 921 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(642, 637, 921) = 1.